Poland’s consumer price inflation accelerated in September 2026, with the month‑over‑month Consumer Price Index (CPI) rising 0.7%, up from a 0.3% increase in August. The data, updated on 30 September 2026, show that price pressures strengthened notably heading into the autumn period.
On a month‑over‑month basis, the September reading reflects a more than doubling of the pace of price growth compared with August, when CPI had held at 0.3% versus July. According to the comparison methodology, the “actual” figure represents the change from September to August 2026, while the “previous” value captures the change from August to July 2026.
The sharper monthly gain in September suggests that inflationary momentum is picking up after a relatively modest increase in the prior month, a development that will be closely watched by market participants and policymakers assessing the trajectory of price stability in Poland.